Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Duct Sealing Across Justin
Duct sealing in Justin, TX typically costs $450 – $1,200 for a whole-home system, with most jobs completed in a single visit. If your utility bills have climbed without explanation, rooms stay stubbornly hot in July, or your HVAC runs nonstop through Justin’s brutal summers, leaky ductwork is the likely culprit.
We’re Hollis Air Duct Cleaning, and our Duct Sealing crews work Justin regularly. Dispatch and scheduling run through our Dallas-Fort Worth office, but the technicians who arrive at your door know this town’s specific headaches: the clay soils along FM 407 that shift and pull duct seams apart, the construction dust from new developments off 114 settling into brand-new systems, and the original metal ductwork in farmhouses near downtown that corrodes at the joints after twenty-plus years of humidity. We’ve sealed ducts in subdivisions built last year and in ranch homes older than the town’s recent boom. When you call (361) 326-5060, a live person answers, and we’ll get you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Justin’s Preferred Duct Sealing Company
Justin homeowners have a particular reason to be cautious about who they let into their attics and crawl spaces. This town’s split personality, old rural stock pressed right up against new construction, means a technician who treats every job the same will miss half the problems. Our crews don’t.
We’ve built our reputation in Justin on showing up inside the quoted window, pricing in writing, and leaving the site clean. The Garrison Standard demands it. Every technician is background-checked and uniformed, so you know who’s arriving before they knock. Our 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails or the leak returns within a year, we come back at no charge, including a free second visit. No negotiation, no runaround.
Calls to (361) 326-5060 reach a live person 24 hours a day. No voicemail loops, no callback queues on Monday morning.
Duct Insulation in Justin
Duct Insulation in Justin addresses a problem most homeowners don’t know they have: conditioned air bleeding into hot attics or humid crawl spaces before it ever reaches the vent. In Justin’s climate, where attic temperatures routinely exceed 140 degrees in July and spring storms drive moisture into every crack, uninsulated or poorly insulated ducts waste 20 – 30% of the cooling you’re paying for. We typically see this in older homes near downtown Justin and along the original ranch properties, where fiberglass wrap has compressed, torn, or simply never been installed. A full duct insulation job in Justin runs $600 – $1,500 depending on linear footage and accessibility.
When Insulation Matters More Than Sealing
Sometimes the ducts are tight but the wrap is gone. In Justin’s newer subdivisions, we’ve found builders used minimum-code insulation that collapsed within five years, especially where summer heat meets attic moisture. We assess whether sealing, insulation, or both will solve the problem, and we tell you straight.
Materials We Use
Our crews carry closed-cell foam wrap and foil-faced fiberglass rated for North Texas temperature swings. We don’t reuse old materials or patch over them. In Justin, where one cold snap can follow a ninety-degree week, that matters.
HVAC Duct Sealing in Justin
HVAC Duct Sealing in Justin fixes the gaps, cracks, and separated joints that let your heated and cooled air escape into walls, attics, and the ground beneath your home. We use mastic sealant and metal-backed tape, not the hardware-store duct tape that fails in eighteen months. For homes with significant leakage, we may recommend aerosol-based duct sealing, which pressurizes the system and seals leaks from the inside. In Justin, where clay soil movement and new-construction settling create fresh gaps annually, this approach catches leaks you’d never find manually. Typical HVAC duct sealing in Justin costs $450 – $1,200 for mastic work, $1,500 – $2,500 for full aerosol sealing.
Signs Your System Needs Sealing
Hot spots in summer, cold spots in winter, dust blowing from vents after storms, and utility bills that jump without rate changes. In Justin, we also watch for musty smells after spring rains, which often mean outdoor moisture is entering through duct gaps.
How We Test Before We Seal
We pressurize your duct system and measure leakage against industry standards. No guesswork, no selling you sealing when the real problem is a blocked return. The number goes on your written estimate.
Trusted Brands We Service in Justin
Our trucks carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus filtration and sealing products from Guardsman. For Justin homeowners, this means we rarely need to order parts and wait. Rotary brush systems from Rotobrush handle the construction debris we find in new Justin builds. Nikro negative-air machines keep dust contained during sealing work in older homes with layers of accumulated grit. Guardsman filtration products seal and protect duct interiors after repair. We don’t show up with hardware-store gear and hope it works. We show up with the same equipment commercial crews use, maintained and ready.
Common Duct Sealing Problems We See in Justin Homes
- Clay soil shifting along FM 407 and 114 corridors. Justin’s expansive clay swells in wet seasons and contracts in drought, pulling duct connections apart in slab homes and crawl spaces. We find separated flex duct and cracked mastic on annual maintenance calls.
- Construction dust in new subdivisions near Trophy Club and Haslet lines. Justin’s building boom means fine drywall dust and insulation particles infiltrate duct systems before homeowners move in. Sealing gaps prevents ongoing contamination.
- Corroded metal duct in pre-2000 farmhouses. Original galvanized steel ductwork in Justin’s older homes rusts at seams after decades of humidity. We seal what we can and flag what needs replacement.
- Storm debris after spring tornado season. High winds force moisture and outdoor particles through loose vent seals and damaged return plenums. Post-storm inspections in Justin often reveal leaks that preceded the damage but went unnoticed.
Pricing for Duct Sealing in Justin, TX
Whole-home duct sealing in Justin typically runs $450 – $1,200 for manual mastic and tape work, and $1,500 – $2,500 for aerosol-based internal sealing. The range depends on system size, accessibility, and how many leaks we find. A single disconnected return in a new subdivision might take two hours. A 1970s ranch with corroded metal duct, rodent damage, and shifted connections can take a full day.
We don’t quote per-vent or over the phone without seeing your system. We do give you one flat price per system, agreed in writing, before any work starts. That price does not move at the door. Estimates are free, and we show you before-and-after photos of your own ducts so you know what was done. For exact pricing on your Justin home, call (361) 326-5060.
We Also Serve Cities Near Justin
Our crews work throughout the northern Dallas-Fort Worth corridor. If you’re in Justin or nearby Roanoke, Haslet, Argyle, or Keller, we cover your area with the same written pricing and 365-Day Done Right Promise. We also handle Air Duct Cleaning in Justin and Dryer Vent Cleaning in Justin for homeowners who want their full system addressed in one visit.
Serving Justin, TX - Our Local Coverage Area
We’re based in the Justin area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Justin
Most Justin homeowners pay $450 – $1,200 for manual sealing and $1,500 – $2,500 for aerosol-based sealing. The exact figure depends on your home’s duct layout and leak severity. Call (361) 326-5060 for a free, written estimate that won’t change.
A typical residential job in Justin takes 3 – 6 hours. Larger homes or those with crawl space access may run longer. We schedule morning or afternoon blocks and arrive inside the quoted window.
Yes. We work throughout Justin, from older properties near downtown to new builds in the expanding western subdivisions. Our crews understand the different duct materials and problems each area presents.
Yes. Justin’s hot, humid summers force air conditioning to run heavily, and every leak sends cooled air into your attic. Sealed ducts typically reduce cooling costs 20 – 30% and eliminate hot rooms that never reached set temperature.
If any sealed joint fails or leakage returns within one year of service, Hollis returns and makes it right at no charge, including a free second visit. The guarantee is written on every invoice, not implied.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Justin and the Dallas-Fort Worth area since 2004.